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- // Copyright 2014 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #include "components/domain_reliability/config.h"
- #include <utility>
- #include "base/json/json_reader.h"
- #include "third_party/abseil-cpp/absl/types/optional.h"
- #include "url/url_constants.h"
- namespace {
- bool ConvertURL(const base::Value* value, GURL* url) {
- if (!value->is_string())
- return false;
- *url = GURL(value->GetString());
- return url->is_valid();
- }
- bool ConvertOrigin(const base::Value* value, url::Origin* origin) {
- GURL url;
- if (ConvertURL(value, &url) && !url.has_username() && !url.has_password() &&
- url.SchemeIs(url::kHttpsScheme) && url.path_piece() == "/" &&
- !url.has_query() && !url.has_ref()) {
- *origin = url::Origin::Create(url);
- return true;
- }
- return false;
- }
- bool IsValidSampleRate(double p) {
- return p >= 0.0 && p <= 1.0;
- }
- } // namespace
- namespace domain_reliability {
- DomainReliabilityConfig::DomainReliabilityConfig()
- : include_subdomains(false),
- success_sample_rate(-1.0),
- failure_sample_rate(-1.0) {
- }
- DomainReliabilityConfig::~DomainReliabilityConfig() {}
- // static
- std::unique_ptr<const DomainReliabilityConfig>
- DomainReliabilityConfig::FromJSON(const base::StringPiece& json) {
- absl::optional<base::Value> value = base::JSONReader::Read(json);
- if (!value)
- return nullptr;
- base::JSONValueConverter<DomainReliabilityConfig> converter;
- auto config = std::make_unique<DomainReliabilityConfig>();
- // If we can parse and convert the JSON into a valid config, return that.
- if (converter.Convert(*value, config.get()) && config->IsValid())
- return config;
- return nullptr;
- }
- bool DomainReliabilityConfig::IsValid() const {
- if (origin.opaque() || collectors.empty() ||
- !IsValidSampleRate(success_sample_rate) ||
- !IsValidSampleRate(failure_sample_rate)) {
- return false;
- }
- for (const auto& url : collectors) {
- if (!url->SchemeIs(url::kHttpsScheme) || !url->is_valid())
- return false;
- }
- return true;
- }
- double DomainReliabilityConfig::GetSampleRate(bool request_successful) const {
- return request_successful ? success_sample_rate : failure_sample_rate;
- }
- // static
- void DomainReliabilityConfig::RegisterJSONConverter(
- base::JSONValueConverter<DomainReliabilityConfig>* converter) {
- converter->RegisterCustomValueField<url::Origin>(
- "origin", &DomainReliabilityConfig::origin, &ConvertOrigin);
- converter->RegisterBoolField("include_subdomains",
- &DomainReliabilityConfig::include_subdomains);
- converter->RegisterRepeatedCustomValue(
- "collectors", &DomainReliabilityConfig::collectors, &ConvertURL);
- converter->RegisterRepeatedString("path_prefixes",
- &DomainReliabilityConfig::path_prefixes);
- converter->RegisterDoubleField("success_sample_rate",
- &DomainReliabilityConfig::success_sample_rate);
- converter->RegisterDoubleField("failure_sample_rate",
- &DomainReliabilityConfig::failure_sample_rate);
- }
- } // namespace domain_reliability
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